Determination of the stability constants of the complexes for lead (II) in sodium fluoride system by using the method of the pseudopolarogram

被引：0
|
作者：
Li, BG [1 ]
Wang, Y
机构：
[1] Inner Mongolia Normal Univ, Dept Chem, Huhhot 010022, Peoples R China
[2] Huhhot Sugar Factory, Huhhot 010058, Peoples R China
来源：
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2000年 / 28卷 / 01期
关键词：
lead; pseudopolarogram; speciation; formation constants;
D O I：
暂无
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The speciation of the complexes for Pb2+ in NaF system was studied by using the method of the pseudopolarogram. The experimental results showed that the compostition and the formation constants of lead fluoride complex ions are PbF+, PbF2, PbF3-,PbF42-, beta(1) = 5.0, beta(2) = 180, beta(3) = 2.6 x 10(3), beta(4) = 1.2 x 10(3) respectively for lead at the concentration of 2 x 10(-7) mol/L and pH = 8. The experimental results agreed with the literature data.
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页码：102 / 105
页数：4
相关论文
共 12 条
  • [1] BRANICA M, 1977, CROAT CHEM ACTA, V49, P539
  • [2] BUBLIC S, 1977, THALASSIA JUGOSL, V9, P47
  • [3] *CENTR S CHIN I MI, 1986, CHEM AN HDB, P627
  • [4] THE DETERMINATION OF CONSECUTIVE FORMATION CONSTANTS OF COMPLEX IONS FROM POLAROGRAPHIC DATA
    DEFORD, DD
    HUME, DN
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1951, 73 (11) : 5321 - 5322
  • [5] APPLICATION OF ASV FOR TRACE-METAL SPECIATION .5. THE PSEUDO-POLAROGRAPHY OF ZINC BY RGCE
    KOMORSKYLOVRIC, S
    LOVRIC, M
    BRANICA, M
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1986, 214 (1-2) : 37 - 50
  • [6] LI JG, 1989, ENV CHEM, V4, P46
  • [7] LOVRIC M, 1980, CROAT CHEM ACTA, V53, P477
  • [8] LOVRIC M, 1980, CROAT CHEM ACTA, V53, P503
  • [9] LOVRIC M, 1980, CROAT CHEM ACTA, V53, P485
  • [10] VOLTAMMETRIC STUDY OF THE SPECIATION OF CADMIUM(II) WITH L-ASPARTIC ACID IN SEA-WATER
    SUGAWARA, M
    VALENTA, P
    NURNBERG, HW
    KAMBARA, T
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 180 (1-2) : 343 - 354
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